circle {
  fill: none;
  stroke: grey;
}
text {
  font-size: 1.5em;
}
g .tick text {
  font-size: 1.5em;
  color: #999;
  font-weight: bold;
  oppacity: 0.5
}
g text {
  font-size: 1.5em;
  font-weight: bold;
}
g .tick line {

}